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Whales are the largest mammal in the world today.
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1.Blue whale. 2.Lion.
The correct answer is quiet: Blue whale.
The blue whale is a marine mammal that belongs to the suborder Baleen Whales. There are four subspecies of the common silver wax. The blue whale is believed to be the largest animal ever to survive on the planet where the sharp fissures are known, reaching up to 33 meters long and weighing up to 181 tons.
The blue whale is not only the largest cetacean, but also the largest living animal, by far the largest mammal.
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The largest mammal in the world is the blue whale.
Blue whales are found in all seas of the world. It weighs about 170 tons and can reach a length of about 30 meters. The head of the blue whale is very large, and it can stand up to 50 people on its tongue.
Newborn calves weigh tons and are meters long. The weight of calves is very fast, usually 24 hours after the mother feeds.
It gains about 100 kilograms in weight, an average of about 70 grams per minute. By the time they reach 7 months, they can weigh about 23 tons and reach a length of 16 meters, and begin to learn to open their mouths to devour a variety of plankton. The baby blue whale grows into an adult after 5 years of growth.
Adult blue whales generally live for 50-80 years.
The blue whale is considered to be the largest animal known to have ever survived on Earth, reaching up to 33 meters long and weighing up to 200 tons. The blue whale has a slender body and a blue-gray back, although it can sometimes be lighter in the water. Blue whales feed mainly on small crustaceans and small fish, sometimes including squid.
Its heart is as big as a car, and its newborn blue whale calf weighs more than an adult elephant. For the first seven months of their lives, the calves drink 400 litres of breast milk per day. Young whales grow quickly, gaining about 90 kilograms of weight every 24 hours.
Although it lives in water, it is viviparous and lactating, and one of the criteria for determining whether it is a mammalian is whether the species is viviparous. Cetaceans are a kind of mammals that live in water, and they have the same physiological characteristics as land mammals, such as respiration with lungs, viviparity, etc., and also have some special physiological structures that have evolved to adapt to the aquatic environment.
The habits of the blue whale
Most of the bays inhabited by blue whales are washed into the terrestrial rivers with extremely rich organic matter, making the water very fertile and promoting the abundance of plankton. The dense plankton attracts large groups of krill with a diamond-blue glow.
The stomach of the blue whale is divided into four, the first stomach is the expansion of the esophagus, so the appetite is huge, it can swallow about 2 million krill at a time, and it has to eat 4000-8000 kg a day, and if the food in the belly is less than 2000 kg, there will be a feeling of hunger.
Krill is the most abundant animal in the world, widely distributed in the Arctic and Antarctic seas, and it is because of such an abundance of food and the fact that there is no weight limit to live in the water that the blue whale can develop so large.
It spends most of its day swimming in dense plankton with its mouth wide open, with two rows of plate-like whiskers on its mouth like a sieve, and many folds in its belly like accordion bellows, which can expand and shrink so that it can swallow the sea water and krill together, and then close its mouth so that the sea water is discharged from the whiskers, filter out the shrimp and fish, and swallow them.
In contrast, the blue whale in the northern seas is smaller than the one that lives in the waters near the Antarctic eggplant, which is believed to be closely related to the type and quantity of its food.
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The largest mammal is the blue whale. The blue whale is a massive cetacean that is one of the largest animals on Earth and the heaviest mammal. They can reach up to 30 meters long and weigh up to 200,000 pounds.
Blue whales are quite grandiose, their hearts can weigh up to 600 pounds and require a huge circulatory system to supply their bodies with enough blood and oxygen.
Blue whales are so large that the amount of food they need to consume each day is staggering. They feed mainly on small crustaceans and small fish and need to consume several tons of food per day. Despite their huge size, their feeding habits are very peculiar.
Blue whales are among the fastest swimmers among cetaceans, but they only swim at high speeds for a short time during the summer months to hunt.
Blue whales are also extremely hardy animals. They live in cold marine environments and need to be able to adapt to extreme temperatures. Blue whales have a thick layer of fat that acts as a slugger to help maintain the body's temperature and allow them to survive in extreme cold conditions.
To sum up, the blue whale is the largest mammal in the world and needs to consume a lot of food to maintain its size. Their body size is closely linked to a special ecological environment, eating habits and insulating ability, making them one of the most unusual creatures on Earth. <>
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